/*
 * Copyright (c) 2012 Mark D. Hill and David A. Wood
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution;
 * neither the name of the copyright holders nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __MEM_RUBY_SLICC_GPUMAPPINGS_HH__
#define __MEM_RUBY_SLICC_GPUMAPPINGS_HH__

#include <cmath>

#include "mem/protocol/MachineType.hh"
#include "mem/ruby/common/Address.hh"
#include "mem/ruby/common/MachineID.hh"
#include "mem/ruby/common/NetDest.hh"
#include "mem/ruby/structures/DirectoryMemory.hh"

inline MachineID
getL2ID(Addr addr, int num_l2, int select_bits, int select_start_bit)
{
    unsigned num = 0;
    if (select_bits) {
        if (num_l2 > pow(2, select_bits))
            fatal("Number of GPU L2 select bits set incorrectly?");
        uint64_t bits = bitSelect(addr, select_start_bit, select_start_bit + select_bits - 1);
        num = bits % num_l2;
    }

    MachineID mach = {string_to_MachineType("GPUL2Cache"), num};
    return mach;
}

#endif
